Water Biomes
Marshland is covered with grasses, reeds, sedges, and cattails. These plants all have their
roots in soil covered or saturated with water and its leaves held above water.Marshes may
be freshwater or salt. Freshwater marshes develop along the shallow edges of lakes and
slow-moving rivers, forming when ponds and lakes become filled with sediment. Salt
marshes occur on coastal tidal flats. Inland salt marshes occupy the edges of lakes. They
affect the supply of nutrients, the movement of water, and the type and deposition of
sediment.
Salt marshes are best developed o…
